Melty Blood: Act Cadenza is an arcade game based on the characters from the game Melty Blood, a home-made visual novel/fighting game by the home-made game developpers Watanabe and Type-moon. Melty Blood was a sequel to the immensely popular visual novel "Tsukihime" by Type-moon.

The arcade fighting game was released in march 2005 and ported to the Playstation 2 in August 2006, with some fixed balance issues.